This is an automated weekly mailing describing the state of the Global IPv4 Research & Education Routing Table received by NSRC's collector from Internet2's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . Global R&E Routing Table Report 23:00 GMT Sat 11 Dec, 2021 BGP Table (Global) as seen at London. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/London/ Analysis Summary ---------------- BGP routing table entries examined: 866233 Prefixes after maximum aggregation (per Origin AS): 329479 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 422463 Total ASes present in the Internet Routing Table: 72208 Prefixes per ASN: 12.00 Origin-only ASes present in the Internet Routing Table: 62029 Origin ASes announcing only one prefix: 25601 Transit ASes present in the Internet Routing Table: 10179 Transit-only ASes present in the Internet Routing Table: 373 Average AS path length visible in the Internet Routing Table: 4.6 Max AS path length visible: 54 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 876 Number of instances of unregistered ASNs: 879 Number of 32-bit ASNs allocated by the RIRs: 38053 Number of 32-bit ASNs visible in the Routing Table: 31530 Prefixes from 32-bit ASNs in the Routing Table: 145746 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 858 Number of addresses announced to Internet: 3072860160 Equivalent to 183 /8s, 40 /16s and 32 /24s Percentage of available address space announced: 83.0 Percentage of allocated address space announced: 83.0 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 289586 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 225755 Total APNIC prefixes after maximum aggregation: 64405 APNIC Deaggregation factor: 3.51 Prefixes being announced from the APNIC address blocks: 220878 Unique aggregates announced from the APNIC address blocks: 93205 APNIC Region origin ASes present in the Internet Routing Table: 12078 APNIC Prefixes per ASN: 18.29 APNIC Region origin ASes announcing only one prefix: 3426 APNIC Region transit ASes present in the Internet Routing Table: 1686 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7327 Number of APNIC addresses announced to Internet: 773725696 Equivalent to 46 /8s, 30 /16s and 30 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-151865 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 255636 Total ARIN prefixes after maximum aggregation: 118041 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 255024 Unique aggregates announced from the ARIN address blocks: 122277 ARIN Region origin ASes present in the Internet Routing Table: 18834 ARIN Prefixes per ASN: 13.54 ARIN Region origin ASes announcing only one prefix: 6838 ARIN Region transit ASes present in the Internet Routing Table: 1884 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4232 Number of ARIN addresses announced to Internet: 1300591872 Equivalent to 77 /8s, 133 /16s and 117 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-401308 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 243650 Total RIPE prefixes after maximum aggregation: 114103 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 240025 Unique aggregates announced from the RIPE address blocks: 147324 RIPE Region origin ASes present in the Internet Routing Table: 28161 RIPE Prefixes per ASN: 8.52 RIPE Region origin ASes announcing only one prefix: 12154 RIPE Region transit ASes present in the Internet Routing Table: 3950 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 35 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10566 Number of RIPE addresses announced to Internet: 713590272 Equivalent to 42 /8s, 136 /16s and 134 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 112904 Total LACNIC prefixes after maximum aggregation: 27000 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 113730 Unique aggregates announced from the LACNIC address blocks: 47551 LACNIC Region origin ASes present in the Internet Routing Table: 10812 LACNIC Prefixes per ASN: 10.52 LACNIC Region origin ASes announcing only one prefix: 2638 LACNIC Region transit ASes present in the Internet Routing Table: 2155 Average LACNIC Region AS path length visible: 5.6 Max LACNIC Region AS path length visible: 54 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8499 Number of LACNIC addresses announced to Internet: 176283392 Equivalent to 10 /8s, 129 /16s and 223 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 27412 Total AfriNIC prefixes after maximum aggregation: 5270 AfriNIC Deaggregation factor: 5.20 Prefixes being announced from the AfriNIC address blocks: 35718 Unique aggregates announced from the AfriNIC address blocks: 11327 AfriNIC Region origin ASes present in the Internet Routing Table: 1578 AfriNIC Prefixes per ASN: 22.63 AfriNIC Region origin ASes announcing only one prefix: 545 AfriNIC Region transit ASes present in the Internet Routing Table: 314 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 906 Number of AfriNIC addresses announced to Internet: 108090624 Equivalent to 6 /8s, 113 /16s and 85 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 8732 8999 54 CHINAMOBILE-CN China Mobile Communicati 7545 5858 787 681 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3589 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3483 1022 56 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3249 1896 54 VNPT-AS-VN VNPT Corp, VN 4766 2239 11374 574 KIXS-AS-KR Korea Telecom, KR 9498 2194 475 237 BBIL-AP BHARTI Airtel Ltd., IN 4755 2118 429 201 TATACOMM-AS TATA Communications formerl 45090 2104 1198 75 TENCENT-NET-AP Shenzhen Tencent Compute 24560 2002 843 358 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 6013 10077 2573 AMAZON-02, US 11492 4583 304 817 CABLEONE, US 22773 4037 3046 393 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 16625 3648 1879 2540 AKAMAI-AS, US 6327 3389 1318 63 SHAW, CA 749 2890 50784 2146 DNIC-AS-00749, US 30036 2576 370 266 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2526 5043 435 CENTURYLINK-US-LEGACY-QWEST, US 20115 2236 3032 502 CHARTER-20115, US Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6827 1733 150 UNI2-AS, ES 20940 3858 3360 190 AKAMAI-ASN1, NL 8551 3497 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3271 187 23 ALJAWWALSTC-AS, SA 12389 2886 2279 895 ROSTELECOM-AS, RU 9009 2621 275 1389 M247, GB 34984 2206 355 598 TELLCOM-AS, TR 58224 1761 919 580 TCI, IR 13188 1609 100 27 TRIOLAN, UA 61317 1560 212 908 ASDETUK www.heficed.com, GB Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10549 3450 581 Uninet S.A. de C.V., MX 10620 3251 491 832 Telmex Colombia S.A., CO 11830 2466 369 62 Instituto Costarricense de Electricidad 13999 1628 288 460 Mega Cable, S.A. de C.V., MX 6503 1436 355 523 Axtel, S.A.B. de C.V., MX 28573 1368 2319 263 CLARO S.A., BR 3816 1241 654 150 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1133 2350 136 TIM SA, BR 6147 1086 370 21 Telefonica del Peru S.A.A., PE 11664 989 189 442 Techtel LMDS Comunicaciones Interactiva Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1624 393 21 LINKdotNET-AS, EG 24835 1548 499 32 RAYA-AS, EG 36992 1286 1430 268 ETISALAT-MISR, EG 36903 1195 543 114 MT-MPLS, MA 29571 826 68 11 ORANGE-COTE-IVOIRE, CI 36935 685 521 39 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 517 50 32 WANANCHI-, KE 37342 470 32 1 MOVITEL, MZ 23889 424 232 16 MauritiusTelecom, MU Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10549 3450 581 Uninet S.A. de C.V., MX 9808 8732 8999 54 CHINAMOBILE-CN China Mobile Communicati 12479 6827 1733 150 UNI2-AS, ES 16509 6013 10077 2573 AMAZON-02, US 7545 5858 787 681 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4583 304 817 CABLEONE, US 22773 4037 3046 393 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 20940 3858 3360 190 AKAMAI-ASN1, NL 16625 3648 1879 2540 AKAMAI-AS, US Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 8732 8678 CHINAMOBILE-CN China Mobile Communications Grou 12479 6827 6677 UNI2-AS, ES 7545 5858 5177 TPG-INTERNET-AP TPG Telecom Limited, AU 7155 3950 3920 VIASAT-SP-BACKBONE, US 11492 4583 3766 CABLEONE, US 20940 3858 3668 AKAMAI-ASN1, NL 22773 4037 3644 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3589 3570 VIETEL-AS-AP Viettel Group, VN 8551 3497 3458 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 16509 6013 3440 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/London/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 46990 UNALLOCATED 8.5.242.0/23 3356 LEVEL3, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US 32306 UNALLOCATED 8.46.80.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/London/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.252.160.0/24 Origin: 398968 GROUP-IID-01, US 23.252.160.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE 23.252.161.0/24 Origin: 398968 GROUP-IID-01, US 23.252.161.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE 23.252.162.0/24 Origin: 398968 GROUP-IID-01, US 23.252.162.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE 23.252.163.0/24 Origin: 398968 GROUP-IID-01, US 23.252.163.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE Complete listing at https://bgp.nsrc.org/REN/London/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:13 /10:40 /11:99 /12:301 /13:594 /14:1205 /15:2076 /16:13519 /17:8271 /18:13766 /19:24873 /20:41862 /21:50467 /22:107107 /23:93337 /24:508679 /25:0 /26:1 /27:0 /28:0 /29:1 /30:4 /31:0 /32:2 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5763 6827 UNI2-AS, ES 8151 4373 10549 Uninet S.A. de C.V., MX 11492 3536 4583 CABLEONE, US 6327 3199 3389 SHAW, CA 7155 3040 3950 VIASAT-SP-BACKBONE, US 22773 3001 4037 ASN-CXA-ALL-CCI-22773-RDC, US 8551 2962 3497 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 39891 2807 3271 ALJAWWALSTC-AS, SA 30036 2234 2576 MEDIACOM-ENTERPRISE-BUSINESS, US 11830 1921 2466 Instituto Costarricense de Electricidad y Telec Complete listing at https://bgp.nsrc.org/REN/London/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1898 2:1013 3:147 4:18 5:3699 6:101 7:5 8:1512 11:172 12:1701 13:410 14:2297 15:133 16:34 17:375 18:129 20:143 21:4 22:188 23:5325 24:2328 25:2 27:2570 29:19 31:2410 32:103 34:1 35:49 36:1745 37:3911 38:2379 39:655 40:148 41:3889 42:1024 43:2077 44:293 45:15655 46:3701 47:270 49:1634 50:1879 51:104 52:1346 54:285 55:718 56:4 57:56 58:1640 59:1045 60:946 61:2244 62:2393 63:1943 64:5393 65:2308 66:4902 67:2925 68:1180 69:4094 70:1340 71:675 72:3079 74:2605 75:1504 76:710 77:2132 78:1739 79:2749 80:1886 81:1476 82:1417 83:1180 84:1301 85:2809 86:691 87:1900 88:982 89:3083 90:477 91:7510 92:1874 93:2546 94:3232 95:3599 96:1297 97:343 98:984 99:894 100:75 101:1303 102:1848 103:27719 104:4098 105:433 106:844 107:2402 108:741 109:4010 110:2045 111:3109 112:1962 113:1445 114:1538 115:1978 116:1872 117:2480 118:2299 119:1881 120:1585 121:999 122:2518 123:2106 124:1545 125:1984 128:1330 129:1107 130:889 131:2056 132:771 133:365 134:1914 135:288 136:830 137:862 138:2433 139:1204 140:846 141:1323 142:1227 143:1409 144:1263 145:330 146:1714 147:1467 148:2203 149:1571 150:849 151:1068 152:1656 153:445 154:3530 155:1360 156:1867 157:1201 158:992 159:2012 160:2358 161:1274 162:3410 163:1177 164:1668 165:1524 166:611 167:1691 168:3628 169:679 170:4289 171:812 172:2900 173:3014 174:1004 175:1144 176:3424 177:4452 178:3012 179:1949 180:2318 181:2619 182:3126 183:1914 184:2411 185:19100 186:4267 187:3476 188:3490 189:3089 190:8715 191:1325 192:10993 193:8450 194:6880 195:4937 196:2911 197:2351 198:5937 199:5960 200:7400 201:5682 202:10220 203:10006 204:4477 205:3381 206:3754 207:3299 208:3987 209:4569 210:3991 211:2307 212:3873 213:3372 214:1154 215:64 216:6351 217:2602 218:1193 219:455 220:1694 221:984 222:677 223:2111 End of report